NM_000639.3:c.44delT

Variant names:

• chr1-172659244-GT-G
• NM_000639.3:c.44delT

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PVS1_Strong PM2 PP5_Moderate

The NM_000639.3(FASLG):​c.44delT​(p.Val15GlyfsTer57) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: FASLG NM_000639.3 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 3.54
• Publications: 0 publications found

Genes affected

FASLG (HGNC:11936): (Fas ligand) This gene is a member of the tumor necrosis factor superfamily. The primary function of the encoded transmembrane protein is the induction of apoptosis triggered by binding to FAS. The FAS/FASLG signaling pathway is essential for immune system regulation, including activation-induced cell death (AICD) of T cells and cytotoxic T lymphocyte induced cell death. It has also been implicated in the progression of several cancers. Defects in this gene may be related to some cases of systemic lupus erythematosus (SLE). Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2014]

FASLG Gene-Disease associations (from GenCC):

• autoimmune lymphoproliferative syndrome type 1

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
• autoimmune lymphoproliferative syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 6 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 1-172659244-GT-G is Pathogenic according to our data. Variant chr1-172659244-GT-G is described in ClinVar as Pathogenic. ClinVar VariationId is 2765866.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000639.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FASLG	NM_000639.3	MANE Select	c.44delT	p.Val15GlyfsTer57	frameshift	Exon 1 of 4	NP_000630.1	P48023-1
	FASLG	NM_001302746.2		c.44delT	p.Val15GlyfsTer57	frameshift	Exon 1 of 3	NP_001289675.1	P48023-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FASLG	ENST00000367721.3	TSL:1 MANE Select	c.44delT	p.Val15GlyfsTer57	frameshift	Exon 1 of 4	ENSP00000356694.2	P48023-1
	FASLG	ENST00000340030.4	TSL:1	c.44delT	p.Val15GlyfsTer57	frameshift	Exon 1 of 3	ENSP00000344739.3	P48023-2
	FASLG	ENST00000875216.1		c.44delT	p.Val15GlyfsTer57	frameshift	Exon 1 of 4	ENSP00000545275.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Autoimmune lymphoproliferative syndrome type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.5

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

hg19: chr1-172628384;